Impact of GEM foil hole geometry on GEM detector gain

Detailed 3D imaging of Gas Electron Multiplier (GEM) foil hole geometry was realized. Scanning White Light Interferometry was used to examine six topological parameters of GEM foil holes from both sides of the foil. To study the effect of the hole geometry on detector gain, the ANSYS and Garfield ++...

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Detalles Bibliográficos
Autores principales: Karadzhinova, A, Nolvi, A, Veenhof, R, Tuominen, E, Hæggström, E, Kassamakov, I
Lenguaje:eng
Publicado: 2015
Materias:
Detectors and Experimental Techniques
Acceso en línea:https://dx.doi.org/10.1088/1748-0221/10/12/P12014
http://cds.cern.ch/record/2149351
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author Karadzhinova, A
Nolvi, A
Veenhof, R
Tuominen, E
Hæggström, E
Kassamakov, I
author_facet Karadzhinova, A
Nolvi, A
Veenhof, R
Tuominen, E
Hæggström, E
Kassamakov, I
author_sort Karadzhinova, A
collection CERN
description Detailed 3D imaging of Gas Electron Multiplier (GEM) foil hole geometry was realized. Scanning White Light Interferometry was used to examine six topological parameters of GEM foil holes from both sides of the foil. To study the effect of the hole geometry on detector gain, the ANSYS and Garfield ++ software were employed to simulate the GEM detector gain on the basis of SWLI data. In particular, the effective gain in a GEM foil with equally shaped holes was studied. The real GEM foil holes exhibited a 4% lower effective gain and 6% more electrons produced near the exit electrode of the GEM foil than the design anticipated. Our results indicate that the GEM foil hole geometry affects the gain performance of GEM detectors.
id oai-inspirehep.net-1410986
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
record_format invenio
spelling oai-inspirehep.net-14109862022-08-10T12:58:18Zdoi:10.1088/1748-0221/10/12/P12014http://cds.cern.ch/record/2149351engKaradzhinova, ANolvi, AVeenhof, RTuominen, EHæggström, EKassamakov, IImpact of GEM foil hole geometry on GEM detector gainDetectors and Experimental TechniquesDetailed 3D imaging of Gas Electron Multiplier (GEM) foil hole geometry was realized. Scanning White Light Interferometry was used to examine six topological parameters of GEM foil holes from both sides of the foil. To study the effect of the hole geometry on detector gain, the ANSYS and Garfield ++ software were employed to simulate the GEM detector gain on the basis of SWLI data. In particular, the effective gain in a GEM foil with equally shaped holes was studied. The real GEM foil holes exhibited a 4% lower effective gain and 6% more electrons produced near the exit electrode of the GEM foil than the design anticipated. Our results indicate that the GEM foil hole geometry affects the gain performance of GEM detectors.oai:inspirehep.net:14109862015
spellingShingle Detectors and Experimental Techniques
Karadzhinova, A
Nolvi, A
Veenhof, R
Tuominen, E
Hæggström, E
Kassamakov, I
Impact of GEM foil hole geometry on GEM detector gain
title Impact of GEM foil hole geometry on GEM detector gain
title_full Impact of GEM foil hole geometry on GEM detector gain
title_fullStr Impact of GEM foil hole geometry on GEM detector gain
title_full_unstemmed Impact of GEM foil hole geometry on GEM detector gain
title_short Impact of GEM foil hole geometry on GEM detector gain
title_sort impact of gem foil hole geometry on gem detector gain
topic Detectors and Experimental Techniques
url https://dx.doi.org/10.1088/1748-0221/10/12/P12014
http://cds.cern.ch/record/2149351
work_keys_str_mv AT karadzhinovaa impactofgemfoilholegeometryongemdetectorgain
AT nolvia impactofgemfoilholegeometryongemdetectorgain
AT veenhofr impactofgemfoilholegeometryongemdetectorgain
AT tuominene impactofgemfoilholegeometryongemdetectorgain
AT hæggstrome impactofgemfoilholegeometryongemdetectorgain
AT kassamakovi impactofgemfoilholegeometryongemdetectorgain

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